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Cheap flights from Istanbul Airport to Seoul from £266

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
IST — SEL
16 May — 23 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Istanbul to Seoul are usually found in June or January, booked 46 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Istanbul to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Istanbul to Seoul
Explore the most affordable flight options available from Istanbul to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2026.

Thu 11/615:00
IST
-
GMP
1 stop16h 05m
Air China
Sat 20/614:25
GMP
-
IST
1 stop23h 35m
Air China
Deal found 16/4£376
Thu 11/615:00
IST
-
ICN
1 stop19h 35m
Air China
Sat 20/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 16/4£376
Tue 9/614:55
IST
-
GMP
1 stop16h 10m
Air China
Sat 20/614:25
GMP
-
IST
1 stop23h 35m
Air China
Deal found 13/4£379
Sun 14/615:00
IST
-
GMP
1 stop16h 05m
Air China
Tue 30/614:25
GMP
-
IST
1 stop23h 35m
Air China
Deal found 12/4£380
Fri 5/615:00
IST
-
ICN
1 stop25h 00m
Air China
Sat 20/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 16/4£380
Fri 12/615:00
IST
-
ICN
1 stop19h 35m
Air China
Sat 20/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 14/4£382
Sun 7/615:00
IST
-
ICN
1 stop17h 20m
Air China
Sat 20/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 14/4£384
Sun 7/615:00
IST
-
GMP
1 stop16h 05m
Air China
Sat 20/614:25
GMP
-
IST
1 stop23h 35m
Air China
Deal found 15/4£399
Wed 10/615:00
IST
-
ICN
1 stop19h 35m
Air China
Sat 20/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 14/4£399
Sun 7/615:00
IST
-
ICN
1 stop17h 20m
Air China
Mon 15/613:05
ICN
-
IST
1 stop24h 55m
Air China
Deal found 14/4£400
Sun 21/615:00
IST
-
GMP
1 stop16h 05m
Air China
Tue 30/614:25
GMP
-
IST
1 stop23h 35m
Air China
Deal found 16/4£401
Sun 21/615:00
IST
-
ICN
1 stop17h 20m
Air China
Tue 30/610:50
ICN
-
IST
1 stop27h 10m
Air China
Deal found 16/4£401

Find flight deals from Istanbul to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 April 2026.

Round-trip from

£376

One-way from

£266

Popular in

October

Cheapest in

June

Average price

£472

Good round-trip deal

£556 or less
Air China
  • Air China
  • 11/6-20/6
  • 2 total stops
  • 39h 40m total
  • Istanbul to Seoul
Search Deals
MIAT Mongolian
  • MIAT Mongolian
  • 23/4
  • 1 total stop
  • 27h 05m total
  • Istanbul to Seoul
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Istanbul to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Istanbul to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 April 2026.
Use the filters below to find and compare flights from Istanbul Airport to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Thu 11/6

15:00-13:05

1 stop16h 05m

Seoul Gimpo Intl

Sat 20/6

14:25-08:00

1 stop23h 35m

£376

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Fri 5/6

15:00-13:05

1 stop16h 05m

Seoul Gimpo Intl

Mon 15/6

14:25-08:00

1 stop23h 35m

£536

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Thu 11/6

15:00-13:05

1 stop16h 05m

Seoul Gimpo Intl

Mon 22/6

14:25-08:00

1 stop23h 35m

£550

IstanbulIncheon

IST - ICN

ISTICN

Istanbul

Sun 23/8

15:00-05:55

1 stop32h 55m

Incheon Intl

Mon 31/8

06:55-22:20

1 stop21h 25m

£551

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Mon 8/6

11:00-19:50

2 stops26h 50m

Seoul Gimpo Intl

Wed 17/6

12:00-07:00

2 stops25h 00m

£619

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Thu 21/5

11:00-19:50

2 stops26h 50m

Seoul Gimpo Intl

Wed 27/5

12:00-07:00

2 stops25h 00m

£666

IstanbulIncheon

IST - ICN

ISTICN

Istanbul

Sun 14/6

22:50-09:40

2 stops28h 50m

Incheon Intl

Wed 17/6

11:10-21:50

2 stops40h 40m

£670

IstanbulIncheon

IST - ICN

ISTICN

Istanbul

Sun 24/5

08:50-17:30

1 stop26h 40m

Incheon Intl

Sun 31/5

23:45-17:30

1 stop23h 45m

£673

IstanbulIncheon

IST - ICN

ISTICN

Istanbul

Fri 15/5

11:40-09:40

2 stops16h 00m

Incheon Intl

Sun 31/5

11:10-11:25

2 stops54h 15m

£680

IstanbulSeoul

IST - GMP

ISTGMP

Istanbul

Sun 17/5

14:00-19:50

1 stop23h 50m

Seoul Gimpo Intl

Wed 27/5

12:00-07:00

2 stops25h 00m

£698

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 38 resultsSorted by cheapest first
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Best time to book a flight from Istanbul to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Istanbul with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Istanbul Airport to Seoul

How far ahead should I book a flight from Istanbul Airport to Seoul?

Use this chart to determine the optimal time to book a return flight from Istanbul to Seoul. Price data was last updated on 10 April 2026.

The best time to book flights from Istanbul Airport to Seoul is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Istanbul Airport to Seoul?

Currently, March is the cheapest month in which you can book a flight from Istanbul Airport to Seoul (average of £117). Flying from Istanbul Airport to Seoul in December is currently the most expensive (average of £247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IST to SEL?

Find hourly flight availability from Istanbul to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 April 2026.

When flying from Istanbul Airport to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Istanbul Airport to Seoul

Explore weekly flight availability from Istanbul to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 April 2026.

The most flights from IST to SEL are scheduled on a Thursday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from Istanbul Airport to Seoul?

What’s the top stopover airport for flights from Istanbul Airport to Seoul?

Share of one-stop return flights from Istanbul Airport to Seoul chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Ulaanbaatar (UBN) – chosen by Cheapflights users on 50% of one-stop itineraries from Istanbul Airport to Seoul on Cheapflights.

What’s the cheapest stopover airport for flights from Istanbul Airport to Seoul?

Average return fare for one-stop flights from Istanbul Airport to Seoul, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Ulaanbaatar (UBN) is the most affordable one-stop option, with an average return flight price of £419.

What’s the fastest stopover option from Istanbul Airport to Seoul?

Shortest average travel time for one-stop one-way flights from Istanbul Airport to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Ulaanbaatar (UBN) have the shortest average one-way travel time for one-stop routes: 16h 40m.

Which airport typically offers the quickest stopover for flights from Istanbul Airport to Seoul?

Average stopover duration for one-stop one-way flights from Istanbul Airport to Seoul, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Ulaanbaatar (UBN) offer the fastest connection on this route, with an average stopover time of 5h 10m.

Related info for your journey

Find useful and relevant information for your journey from Istanbul to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Istanbul Airport to Seoul?

    For as low as £376, Air China can have you in Seoul from Istanbul Airport in 16h 05m. There are 4931 mi between Istanbul Airport and Seoul. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Istanbul Airport to Seoul?

    No one likes to see their flight delayed. When booking a flight from Istanbul Airport to Seoul consider choosing Korean Air (90%), Asiana Airlines (65%) or Turkish Airlines (48%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Istanbul Airport to Seoul?

    On average you can expect to pay £621 for a flight from Istanbul Airport to Seoul. The cheapest flight overall is £513 while the most popular route, (Istanbul - Incheon Intl) is currently priced at £483.

  • Where are the most common stopover locations when flying from Istanbul Airport to Seoul?

    Istanbul Airport to Seoul flights have a stopover in Riyadh most of the time. Riyadh is followed by Ulaanbaatar in terms of the most popular stopover location on flights from Istanbul Airport to Seoul. Beijing ranks third in terms of the most popular layover location on Istanbul Airport to Seoul flights.

  • What are points of interest worth seeing during a stopover in Beijing?

    Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen are currently the most popular points of interest in Beijing. Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen can be visited by travelling about 28.1 mi, 28.2 mi, and 27.0 mi respectively from Beijing Daxing Intl.

  • Where are the least popular stopover locations for Istanbul Airport to Seoul flights?

    Of the flights from Istanbul Airport to Seoul that have stopovers, the fewest flights stop in Abu Dhabi. Guangzhou sees the next fewest stopovers on Istanbul Airport to Seoul flights.

  • Can I find deals for flights from Istanbul to Seoul that include hotel bookings?

    Yes. In addition to deals on Istanbul to Seoul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Istanbul to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Istanbul to Seoul.

  • Can I find deals for business class flights from Istanbul to Seoul?

    Yes. Cheapflights offers flight deals from Istanbul to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Istanbul Airport to Seoul?

    Currently, March is the cheapest month in which you can book a flight from Istanbul Airport to Seoul (average of £117). Flying from Istanbul Airport to Seoul in December is currently the most expensive (average of £247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Istanbul to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Istanbul to Incheon Intl flights
Istanbul to Gimpo Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Istanbul to Seoul?

Deals for Istanbul to Seoul flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Istanbul to Seoul?

Cheapflights helps you find that perfect flight to Seoul from Istanbul by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Istanbul to Seoul with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Istanbul to Seoul, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Istanbul to Seoul become cheaper?

Yes, Cheapflights offers price alerts on Istanbul to Seoul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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